A spear chucker is generally someone from kenya, but also
applies to any half bred or full blown nigger. it originates from the hunting days when the tribes black warrior's used to hide in bush's to ambush their pray,they remained invisable (except when they smiled ) and would throw spears in to the prey and then eat it raw like the savages they were

steve: i hear mr.white has gone on vacation to kenya
stu: oh, go no hell get eaten by the spear chuckers